Mechanism for wheeling cribs



Jan. 17, 1928. 1,656,655

v. WEINBERGER ET AL MECHANISM FOR WHEEL-1N6 cams Filed July 26. 1926 o f nvvzivron mum BY gm Patented Jan. 17, 1928.

UMTEDSTATES PATENT OFFICE.

VIKTOR W'EIN'BEEGER AND MARTIN JAKOBOVITS, F BRONX, NEW YURI.

nncnnmsm FOR wnnnmno earns.

Application filed July 26,

tion, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings,

and to the appended claims in which the various novel features of the invention are 16 more particularly set forth.

Fig. l of the drawings, is a side elevational view of a mechanically drivencrib.

Fig. 2 is a similar view of an electrically driven crib. V

Fig. 3 is a bottom plan view of the mechanically driven crib asillustrated in Fig. 1.

Fig. 4 is a similar view of the electrically driven crib as illustrated in Fig. 2.

Fig. 5 is a side elevational view of the driving mechanism as illustrated in Fig. 3.

Fig. 6 is a bottom plan view of the mechanism embodied in a combination mechanically and electrically driven crib.

Fig. 7 is a similar fragmentary view show ing the circuit breaker.

Referring in particular to Figs. 1 and 3 of the accompanying drawings, it will be seen that we have illustrated a mechanically driven crib, which comprises a crib proper,

36 consisting of upright supports 10, adapt-ed to support side rails 11, a base member 12, and intermediate bars 18. The wheels 1e are rotatively attached to the lower extremities ofthe upright supports 10. The above described construction is such as is generally used in cribs, which are provided with suitable crib springs and a mattress, not shown in the accompanying drawings, and which are supported by the base member 12.

4-5 The coil spring 15 is positioned in the case 16, rotatively mounted in bearings 17, at tached to the base member 12, and has attached thereto, and extending therefrom a crank 18 having a handle 19, as a means of i winding the coil spring 15, which is held in a wound position by a ratchet 20, adapted to engage in a ratchet wheel 21. The gear 22 is attached to'the case 16, and meshes with a gear 23 attached to the shaft 2 1, rotatively 5 mounted in suitable bearings 25, attached to the base member 12, and has attached thereto 19%. Serial no. 124,891.

a disk 26, which has pivot-ally attached thereto, at or near its periphery, an arm 27, pivotally attached to a lever 28, which is attached to the shaft 29, rotatively mounted in suitable bearings 30, attached to the base member 12. The gear 31 is attached to the shaft 29, and meshes with a pinion 32, attached to the shaft 33, rotatively mounted in the above mentioned upright supports 10, to which are attached the wheels li. The above described construction being such as will permit the 0011 spring 15 when wound, and released by" the disengagement of the ratchet 20, to drive the crib forward along the floor. It will b'e understood that the above described mechanism may be mounted integral, that is, that the bearings above mentioned may be mounted in an integralframe member. 1'

' The Worm gear 34, meshes with the worm wheel 22, and is rotatively mounted in suitable bearings 35 attached to the base member I 12, and engages with a worm wheel 86, to

which is operatively attached a ball governor 37, adapted to regulate the maximum speed of the unwinding of the coil spring 15, so as tolimit thespeed of the said crib. The said 7 ball governor is of ordinary construction, such as is generally used, and may be set to function at various speeds by means of the lever 38, which is commonlyused in connection with ball governors.

Referring in particular to Figs. 2 and 4 of the accompanying drawings, in which we have illustrated an electrically driven crib, which comprises an electric motor 39, connected by the wires 40, to a switch 41, attached to the upright support 10, and which is connected to any suitable source of electric current, not shown in the accompanying drawings, by wires of sufficient length to per mit our improved crib to be driven forward and backward, the worm gear 42 is attachedto the armature shaft 43 of the electric motor 89, the armature shaft as being further supported by a bearing 14:, attached to the base member 12. The worm wheel 45, meshes with the worm gear 42, and is attached to the shaft a6, rotatively mounted in suitable bearings 47, attached to the base member 12, and the worm wheel 15 meshes with the above mentioned worm wheel 23. The above described construction being such as will permit the electric motor 39 to drive the crib forward and backward along the floor.

Refer in particular to Fig. 6 of the above mentioned worm gear accompanying drawings, in which we have illustrated a combination mechanically and electrically driven crib.

The above mentioned worm wheel meshes with the worm wheel 50, attached to the shaft 51. The worm wheel has: attached thereto a clutch member 52, adapted to be engaged by the clutch member 523, attached to the tubular member 57, slidabiy mounted on the shaft 50. The worm gear 5.38 is attached to the tubular member 5'7, and adapted to be slidably engaged with the 22. The engaging member 5%, slidably mounted, as at 55, to the bttE-BG member 12, is provided with an extended element having;- a forked extremity adapted to engage the tubular member 57. and the above described construction such act will permit the eiectric motor 39, or the coil spring in to operate our improved crib, as will be obvious by the above described elements.

Referring in particular to Fig. 7 of the accompanying drawing the circuit breaker 69, is attached to the extended element of the above mentioned engaging member 54, and is adapted to break the electric circuit of the electric motor 39, when the above mentioned crib is mechanically operated, so as to i being operated.

While we have above describedthe preferred form, construction and arrangement of the several elements employed, it will be understoolfl that tl'iedcvicc is, nevertheless,

susceptible of considerable modification therein, and we therefore reserve the privilege of resorting to all such .changes as, may be Fairlv embodied withinthe spir scope oil? the invention asclainiedf Having thus described omiinvent-ion, what we claim as new and desneto protect by Letters Patent of the United States is, as follows:

1. In a crib on. wheels. of the; class described, the combination with a driveable disc supported on the, bottom: of the, crib,

prevent the said electric motor 39 from t and of an arm pivotally attached to the disc near its periphery, a lever pivotally attached at one end to the free end of the arm, a shaft rotatabiy mounted. to the crib, and having the other end of the lever attached thereto, a gear on the said shaft, a pinion meshing with the gear, and a shaft supporting the pinion, the latter mentioned aha it being connected with the wheels oi the crib.

2. In a crib on wheels oi the class described, the combination with a driveable disc supported on the bottom of the crib, of an arm jiivotally attached to the disc near its periphery, a, lever pivotally attached at one end to the free end of the arm, a shaft rotatably mounted in bearings; attached to the crib, and having the other end of the lever attached thereto, a gear on the said shaft, a.

pinion meshing with the gear, and a shaft supporting the pinion, the latter mentioned shattbeing connected with the wheels of the crib.

3. In a crib on wheels of theuclass de scribed, a disc rotatively mounted beneath the floor of caid crib, driving mechanism operatively connected with said disc for continuously rotating the same in one direction,

a. rotatively mounted shaft. on said crib for supporting; the wheels thereof, a pinion. on said shatt, a rod journalcd on the floor of said crib,a gear meshed with said pinion and rigidly attachedto said rod, and connecting mechanism comprising a crank rigidly attached to said rod and a link pivotall q attached at one. end to said crank and at the other end to said disc adapted to drive: the wheels of saidcrib first. in one direction and then in another and to produce a gradual decrease in the speed of rotation of saidwhccls before reversal of therotation thereof and to produce a gradually increasing speed of rotation after the reversal of rotation thereofi In testimony whereof we have aiiixed our signatures.

VIKTOR W'EINBERGER- MARTIN JAKOBOVITS. 

